1
2
3
4
5
100
2(a+1)=4
1
100
3(b+2)=15
3
100
y+2(y+1)=11
3
100
5(d+3)=35
4
100
6(x+2)=42
5
200
3(a+2)+1=13
2
200
2(b+1)+2=4
0
200
4(c+2)=28
5
200
6(d+2)+3=63
8
200
7(x+1)+4=74
9
300
6(a+2)=27+33
8
300
7(b+1)=2+40
5
300
3(c+2)=2+10
2
300
2(d+1)=3+7
4
300
4(x+3)=20+24
8
400
5-(a+2)=0
3
400
6-(b+1)=9
-4
400
7-(c+9)=-4
2
400
9-(d-1)=5
5
400
4x-8+x=2
2
500
a+2(a+6)=24
4
500
b+(3b+5)=25
5
500
2c+3(c+1)=48
9
500
5(d+4)+2d=62
6
500
4(x-2)+x=7
3
M
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